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Implement raw_exec cgroups v2 support #12348

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shoenig opened this issue Mar 22, 2022 · 2 comments
Closed

Implement raw_exec cgroups v2 support #12348

shoenig opened this issue Mar 22, 2022 · 2 comments
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theme/cgroups cgroups issues type/bug
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1.3.0

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@shoenig
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shoenig commented Mar 22, 2022

While working on #11289 (comment) (cpuset cgroup v2) I've noticed raw_exec not behaving on machines where cgroups v1 is not mounted.

Will Skip out these tests for now and come back to this.

➜ mount -l | grep cgroup
cgroup2 on /sys/fs/cgroup type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)

    driver_test.go:387: 
        	Error Trace:	driver_test.go:387
        	            				asm_amd64.s:1581
        	Error:      	Received unexpected error:
        	            	rpc error: code = Unknown desc = executor Shutdown failed: rpc error: code = Unknown desc = 1 error occurred:
        	            		* not implemented for cgroup v2 unified hierarchy
        	            	
        	Test:       	TestRawExecDriver_Start_Kill_Wait_Cgroup
@shoenig shoenig self-assigned this Mar 22, 2022
@shoenig shoenig added the theme/cgroups cgroups issues label Mar 22, 2022
@shoenig shoenig added this to the 1.3.0 milestone Mar 22, 2022
@shoenig shoenig mentioned this issue Mar 22, 2022
Merged
shoenig added a commit that referenced this issue Mar 31, 2022
@shoenig
raw_exec: make raw exec driver work with cgroups v2
cf909fa 
This PR adds support for the raw_exec driver on systems with only cgroups v2.

The raw exec driver is able to use cgroups to manage processes. This happens
only on Linux, when exec_driver is enabled, and the no_cgroups option is not
set. The driver uses the freezer controller to freeze processes of a task,
issue a sigkill, then unfreeze. Previously the implementation assumed cgroups
v1, and now it also supports cgroups v2.

There is a bit of refactoring in this PR, but the fundamental design remains
the same.

Closes #12351 #12348
@shoenig shoenig mentioned this issue Mar 31, 2022
Merged
shoenig added a commit that referenced this issue Mar 31, 2022
@shoenig
raw_exec: make raw exec driver work with cgroups v2
c8d2402 
This PR adds support for the raw_exec driver on systems with only cgroups v2.

The raw exec driver is able to use cgroups to manage processes. This happens
only on Linux, when exec_driver is enabled, and the no_cgroups option is not
set. The driver uses the freezer controller to freeze processes of a task,
issue a sigkill, then unfreeze. Previously the implementation assumed cgroups
v1, and now it also supports cgroups v2.

There is a bit of refactoring in this PR, but the fundamental design remains
the same.

Closes #12351 #12348
shoenig added a commit that referenced this issue Apr 4, 2022
@shoenig
raw_exec: make raw exec driver work with cgroups v2
06a3872 
This PR adds support for the raw_exec driver on systems with only cgroups v2.

The raw exec driver is able to use cgroups to manage processes. This happens
only on Linux, when exec_driver is enabled, and the no_cgroups option is not
set. The driver uses the freezer controller to freeze processes of a task,
issue a sigkill, then unfreeze. Previously the implementation assumed cgroups
v1, and now it also supports cgroups v2.

There is a bit of refactoring in this PR, but the fundamental design remains
the same.

Closes #12351 #12348
shoenig added a commit that referenced this issue Apr 4, 2022
@shoenig
raw_exec: make raw exec driver work with cgroups v2
be7ec8d 
This PR adds support for the raw_exec driver on systems with only cgroups v2.

The raw exec driver is able to use cgroups to manage processes. This happens
only on Linux, when exec_driver is enabled, and the no_cgroups option is not
set. The driver uses the freezer controller to freeze processes of a task,
issue a sigkill, then unfreeze. Previously the implementation assumed cgroups
v1, and now it also supports cgroups v2.

There is a bit of refactoring in this PR, but the fundamental design remains
the same.

Closes #12351 #12348
@shoenig
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shoenig commented Apr 5, 2022

Closed by #12419

@shoenig shoenig closed this as completed Apr 5, 2022
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